KR20010063374A - Zigzag-shape Microstrip Patch Antenna - Google Patents

Zigzag-shape Microstrip Patch Antenna Download PDF

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Publication number
KR20010063374A
KR20010063374A KR1019990060437A KR19990060437A KR20010063374A KR 20010063374 A KR20010063374 A KR 20010063374A KR 1019990060437 A KR1019990060437 A KR 1019990060437A KR 19990060437 A KR19990060437 A KR 19990060437A KR 20010063374 A KR20010063374 A KR 20010063374A
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KR
South Korea
Prior art keywords
antenna
zigzag
patch
length
substrate
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KR1019990060437A
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Korean (ko)
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KR100362176B1 (en
Inventor
박항구
윤현보
김동섭
Original Assignee
송문섭
주식회사 현대큐리텔
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Priority to KR1019990060437A priority Critical patent/KR100362176B1/en
Priority to US09/745,327 priority patent/US6515626B2/en
Priority to JP2000390467A priority patent/JP2001203521A/en
Publication of KR20010063374A publication Critical patent/KR20010063374A/en
Application granted granted Critical
Publication of KR100362176B1 publication Critical patent/KR100362176B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
    • H01Q9/0457—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means electromagnetically coupled to the feed line

Abstract

PURPOSE: A zigzag micro strip patch antenna is provided to reduce the effect of an electromagnetic wave generated on a communication terminal and achieve a high emissivity. CONSTITUTION: An RT-duroid 5880 substrate(10) is formed of polytetrafluoroethylene for glass micro fiber reinforcement and has a high permittivity of 2.33. A zigzag patch(20) is formed of a conductive metal installed on an upper surface of the substrate(10) by a photosensitive method. A triangular pad(30) is a conductive metal and formed on a side of the patch. Width of the substrate(10) is 25mm and length thereof is 17mm. Diameter of the patch is 12mm and length of the patch is 1/8λ. A total length of a strip reaches 4/3λ. The micro strip having the length is inserted in a zigzag form into the patch having the length of 1/8λ. A zigzag antenna is mountable on an inside of a terminal as stated above, such that emitted patterns, gains, and bands are improved, adverse effect of an electromagnetic wave on a user's head is minimized, and size reduction of antenna is achieved.

Description

지그재그형 마이크로 스트립 패치 안테나 {Zigzag-shape Microstrip Patch Antenna}Zigzag-shape Microstrip Patch Antenna}

본 발명은 지그재그형 마이크로 스트립 패치 안테나에 관한 것으로서, 특히 개인통신서비스(PCS: Personal Communication Services)와 무선가입자망(WLL: Wireless Local Loop) 단말기에 내장되는 3요소의 지그재그형 마이크로 스트립 패치 안테나에 관한 것이다.The present invention relates to a zigzag microstrip patch antenna, and more particularly, to a three element zigzag microstrip patch antenna embedded in a Personal Communication Services (PCS) and a Wireless Local Loop (WLL) terminal. will be.

현재, 가장 많이 사용되고 있는 단말기 안테나는 수축되었을 때 헬리컬 안테나로 동작하고, 확장되었을 때 헬리컬 안테나와 모노폴 안테나가 결합에 의해 동작하고 있으며, 또 휴대용 단말기 본체의 하우징을 접지로 이용하고 있다. 도 4a 및 도 4b에 도시한 바와 같이, 헬리컬 안테나의 일예를 들면, 섀시(25)와 그리고 안테나와 통신장비와의 전기적 접속을 마련하는 급전점(22) 및 무선신호를 송수신하는 회로(23)를 포함하고 있다. 또한, 섀시(23)의 외부에 고정된 중공의 나선형 안테나(6)와, 이 나선형 안테나(6)를 통해 슬라이드할 수 있는 직립의 방사체(1)의 부분인 안테나 로드(1)를 포함한다.Currently, the most commonly used terminal antenna operates as a helical antenna when it is contracted, and when a helical antenna and a monopole antenna are operated when they are expanded, the housing of the portable terminal main body is used as the ground. As shown in Figs. 4A and 4B, for example, a helical antenna, a feed point 22 for establishing an electrical connection between the chassis 25 and the antenna and communication equipment, and a circuit 23 for transmitting and receiving radio signals. It includes. It further comprises a hollow spiral antenna 6 fixed to the outside of the chassis 23 and an antenna rod 1 which is part of an upright radiator 1 which can slide through this spiral antenna 6.

또, 나선형 안테나(6)는 1/4파 형식의 것이며, 급전점(22)을 경유하여 회로(23)에 항상 결합되어 있다.The spiral antenna 6 is of the quarter wave type and is always coupled to the circuit 23 via the feed point 22.

그리고, 직립의 방사체(1)는 1/4파 방사체이고, 안테나 장치는 스위칭 장치(2,12,13)가 마련되어 있어, 안테나 로드를 연장하는 때에 이는 급전점(22)을 경유하여 4분의 1파 방사체(1)를 나선형 안테나와 병렬로 회로(23)에 결합하지만, 안테나 로드를 수축하는 때에는 4분의 1파 방사체를 회로(23)와 급전점(22)으로부터 분리한다.The upright radiator 1 is a quarter wave radiator, and the antenna device is provided with switching devices 2, 12, 13, and when the antenna rod is extended, it is divided into four minutes via the feed point 22. The one-wave radiator 1 is coupled to the circuit 23 in parallel with the helical antenna, but when the antenna rod is retracted, the quarter wave radiator is separated from the circuit 23 and the feed point 22.

이러한 구조의 단말기 안테나는 방사패턴이 안테나 전체의 중심부에서 나타나게 되어 전자파에 의해 인체 두부가 영향을 받을 뿐 아니라, 사용자에 의해 안테나의 방사가 방해를 받아 방사효율의 저하를 초래한다.In the terminal antenna of such a structure, the radiation pattern appears in the center of the entire antenna, and not only the human head is affected by the electromagnetic waves, but also the radiation of the antenna is disturbed by the user, resulting in a decrease in radiation efficiency.

또한, 안테나의 크기가 크고 외부에 부착되어 있어서 단말기 소형화에 많은 제한을 준다.In addition, the size of the antenna is large and attached to the outside, which places a lot of restrictions on the miniaturization of the terminal.

본 발명의 목적은 휴대용 통신단말기에서 발생된 전자파가 인체에 미치는 영향을 줄임과 동시에 방사효율이 높은 지그재그형 마이크로 스트립 패치 안테나를 제공하는 데에 있다.SUMMARY OF THE INVENTION An object of the present invention is to provide a zigzag microstrip patch antenna with high radiation efficiency while reducing the effect of electromagnetic waves generated on a portable communication terminal.

또한, 본 발명의 또다른 목적은 휴대용 단말기를 소형, 경량화할 수 있는 지그재그형 마이크로 스트립 패치 안테나를 제공하는 데에 있다.Another object of the present invention is to provide a zigzag microstrip patch antenna that can reduce the size and weight of a portable terminal.

도1은 본 발명의 일실시예에 따른 3요소로 구성된 평면 지그재그형 마이크로 스트립 패치 안테나의 단면도이며,1 is a cross-sectional view of a planar zigzag microstrip patch antenna consisting of three elements according to one embodiment of the invention;

도2는 도1의 지그재그형 마이크로 스트립 패치 안테나의 사양을 도시한 표이고,FIG. 2 is a table showing the specifications of the zigzag microstrip patch antenna of FIG.

도3은 상기 안테나의 복사패턴을 도시하며,3 shows a radiation pattern of the antenna,

도 4a 및 도 4b는 종래 헬리컬 안테나를 도시한 도면이다.4A and 4B show a conventional helical antenna.

상기 목적을 달성하기 위해 본 발명은 기존의 입체 헬리컬 안테나를 대신하여 단말기의 내부에 실장할 수 있는 3요소의 평면 지그재그형 마이크로 스트립 안테나를 제공한다.In order to achieve the above object, the present invention provides a three-element planar zigzag microstrip antenna that can be mounted in the terminal instead of the conventional three-dimensional helical antenna.

이하, 본 발명에 따른 바람직한 일실시예를 도면을 참고하여 설명한다.Hereinafter, a preferred embodiment according to the present invention will be described with reference to the drawings.

도1은 본 발명의 일실시예에 따른 3요소의 지그재그형 마이크로 스트립 패치 안테나의 단면도이다.1 is a cross-sectional view of a three element zigzag microstrip patch antenna in accordance with one embodiment of the present invention.

도1에 나타난 바와 같이, 본 발명은 높은 유전율(2.33)을 가지는 유리 마이크로파이버 강화 폴리테트라플루오로에틸렌 조성체인 RT-duroid 5880 기판(10)과, 상기 기판(10)의 상면에 사진감광법에 의해 설치된 도전금속으로 이루어진 3요소의 지그재그형 패치(20)와, 상기 패치옆에 구비된 도전금속의 삼각패드(30) 및 접지면(40)으로 구성된다.As shown in FIG. 1, the present invention relates to a RT-duroid 5880 substrate 10, which is a glass microfiber reinforced polytetrafluoroethylene composition having a high dielectric constant (2.33), and to a photosensitive method on the upper surface of the substrate 10. It consists of a three-element zigzag patch 20 made of a conductive metal, and a triangular pad 30 and a ground plane 40 of a conductive metal provided next to the patch.

도면에 나타낸 바와 같이, 기판(10)의 폭은 25mm이고, 길이는 17mm이다. 또한, 상기 패치의 직경(D)은 12 mm이며, 패치의 길이(L2)는 1/8 λ로 설계하였다. 스트립을 일직선으로 했을 때의 총 연장길이는 4/3 λ이므로, 이 길이의 일직선 마이크로 스트립을 상기 패치의 길이 1/8 λ내에 지그재그 형태로 삽입하여 설계한것이다. 피치각(α)은 약 18.92°이다.As shown in the figure, the width of the substrate 10 is 25 mm and the length is 17 mm. The diameter D of the patch was 12 mm, and the length L2 of the patch was designed to be 1/8 lambda. Since the total extension length when the strip is in a straight line is 4/3 lambda, the straight micro strip of this length is designed by inserting a zigzag into the length 1/8 lambda of the patch. The pitch angle α is about 18.92 degrees.

도3에 도시한 바와 같이 상기 안테나를 수직으로 설치하여 측정한 복사패턴은 E 패턴을 나타내고, 수평으로 설치하여 측정한 복사패턴은 H 패턴을 나타낸다.As shown in Fig. 3, the radiation pattern measured by installing the antenna vertically represents an E pattern, and the radiation pattern measured by installing horizontally represents an H pattern.

도2는 상기 3요소로 된 지그재그형 마이크로 스트립 패치 안테나의 사양을 도시한 표이다. 이 표에서 수신 주파수 대역의 중심 주파수는 1.8 GHz이며, 또한, 대역폭은139 MHz이고, 게인은 1.9 dBi를 얻었으며, 넓은 대역폭 및 높은 게인값을 가지는 것을 알 수 있다.Fig. 2 is a table showing the specifications of the zigzag microstrip patch antenna of the three elements. In this table, it can be seen that the center frequency of the reception frequency band is 1.8 GHz, the bandwidth is 139 MHz, the gain is 1.9 dBi, and has a wide bandwidth and a high gain value.

이상, 설명한 바와 같이 본 발명에 의하면, 단말기의 내부에 실장할 수 있는 지그재그형 안테나를 제공함으로써 안테나의 효율을 극대화시켜 방사 패턴, 이득,대역성이 개선되며, 또한 인체 두부에 미치는 전자파의 영향을 최소화하고 안테나의 소형, 경량화를 가져올 수 있다.As described above, according to the present invention, by providing a zigzag antenna that can be mounted inside the terminal, the efficiency of the antenna is maximized by maximizing the antenna efficiency, and the effect of electromagnetic waves on the head of the human body is improved. Minimize and reduce the weight of the antenna.

Claims (2)

유전체 기판과, 상기 기판의 상면에 설치된 도전금속으로 이루어진 3요소의 지그재그형 패치와, 상기 패치옆에 구비된 도전금속의 삼각패드 및 접지면으로 구성되어 통신 단말기의 내부에 실장할 수 있도록 한 것을 특징으로 하는 지그재그형 마이크로 스트립 패치 안테나.It consists of a dielectric substrate, a three-element zigzag patch made of a conductive metal provided on the upper surface of the substrate, a triangular pad of a conductive metal provided on the side of the patch, and a ground plane to be mounted inside the communication terminal. A zigzag microstrip patch antenna. 제1항에 있어서,The method of claim 1, 상기 유전체 기판은 높은 유전율(2.33)을 가지는 유리 마이크로파이버 강화 폴리테트라플루오로에틸렌 조성체인 RT-duroid 5880 기판인 것을 특징으로 하는 3요소로 구성된 지그재그형 마이크로 스트립 패치 안테나.The dielectric substrate is a three-element zigzag microstrip patch antenna, characterized in that the RT-duroid 5880 substrate of glass microfiber reinforced polytetrafluoroethylene composition having a high dielectric constant (2.33).
KR1019990060437A 1999-12-22 1999-12-22 Zigzag-shape Microstrip Patch Antenna KR100362176B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019990060437A KR100362176B1 (en) 1999-12-22 1999-12-22 Zigzag-shape Microstrip Patch Antenna
US09/745,327 US6515626B2 (en) 1999-12-22 2000-12-21 Planar microstrip patch antenna for enhanced antenna efficiency and gain
JP2000390467A JP2001203521A (en) 1999-12-22 2000-12-22 Flat microstrip patch antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019990060437A KR100362176B1 (en) 1999-12-22 1999-12-22 Zigzag-shape Microstrip Patch Antenna

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KR20010063374A true KR20010063374A (en) 2001-07-09
KR100362176B1 KR100362176B1 (en) 2002-11-23

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CN109560384B (en) * 2018-10-29 2021-05-25 西安理工大学 Improved quasi-self-complementary broadband multimode antenna applied to LTE/WWAN

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